Service books are good refrences. they will not tell you specifily how to do things, but will show detailed pictures on how they are assembled along with part #'s and trouble shooting sections.
You can pick one on CD-ROM for $5 on ebay. or $118-$180 (depending on their markup) for a hard back copy through your local service department
As for a DSM Bible; were all waiting for somone to step up to the plate and write one. There are good resorces available through
www.vfaq.com www.dsmtuner.com www.dsmtalk.com www.talondigest.com and a few others. but no how-to-books yet!